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An electric toothbrush, motorized toothbrush, or battery-powered toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation -oscillation (where the brush head alternates clockwise and counterclockwise rotation), in order to clean teeth. Motions at sonic speeds or below are made by a ...
A toothbrush is a special type of brush used to clean the teeth, gums, and tongue. It consists of a head of tightly clustered bristles, atop of which toothpaste can be applied, mounted on a handle which facilitates the cleaning of hard-to-reach areas of the mouth. They should be used in conjunction with something to clean between the teeth ...
Mechanically powered flashlights were distributed by aid organizations to survivors of the 2010 Haiti earthquake since electric power was lost for a long period. A mechanically powered flashlight (UK: mechanically powered torch) is a flashlight that is powered by electricity generated by the muscle power of the user, so it does not need ...
2012: Oral-B Trizone 1000 electric toothbrush with brush head shape and brushing technique similar to a manual brush. 2014: the first toothbrush with Bluetooth 4.0 Oral-B SmartSeries technology. 2017: New version of the battery, holds a charge 2 times longer and charges 2 times faster. 2019: Genius X toothbrush with artificial intelligence.
Antidepressants are common culprits. But sometimes the cause of memory lapses is inside your head because of how your brain is aging. As you get older, your brain gets “noisier.”. It’s like ...
Touch-sensitive lamp. A touch-sensitive lamp is a combination of a lamp and a touch switch. They act on the principle of body capacitance, activated by human touch rather than a flip, push-button, or other mechanical switch. They are popular as desk and nightstand lamps. Touch-sensitive lamp switches may be dimmable, allowing the brightness of ...
Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...
In 1993, Johnny Cash was between record contracts — and just about to embark on an iconic collaboration with producer Rick Rubin that would span the last 10 years of his life, starting with 1994 ...